<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card class="box-card">
      <div>
        <!-- 栅格布局 -->
        <!-- 搜索框 -->
        <el-row :gutter="20">
          <el-col :span="16">
            <div class="grid-content bg-purple">
              <el-input
                placeholder="请输入内容"
                class="input-with-select"
                v-model="queryInfo.query"
                clearable
                @clear="getUserList"
              >
                <el-button
                  slot="append"
                  icon="el-icon-search"
                  @click="getUserList"
                ></el-button>
              </el-input>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="grid-content bg-purple">
              <el-button
                type="primary"
                @click="addDialogVisible = true"
              >用户添加</el-button>
            </div>
          </el-col>
        </el-row>
        <!-- 用户数据 -->
        <el-table
          :data="userlist"
          border
          style="width: 100%"
        >
          <el-table-column
            type="index"
            label="#"
          ></el-table-column>
          <el-table-column
            prop="username"
            label="姓名"
            width="180"
          >
          </el-table-column>
          <el-table-column
            prop="email"
            label="邮箱"
            width="180"
          >
          </el-table-column>
          <el-table-column
            prop="mobile"
            label="电话"
            width="180"
          >
          </el-table-column>
          <el-table-column
            prop="role_name"
            label="角色"
            width="180"
          >
          </el-table-column>
          <el-table-column
            prop="mg_state"
            label="状态"
            width="180"
          >
            <template slot-scope="scope">
              <el-switch
                v-model="scope.row.mg_state"
                v-on:change="userStateChange(scope.row)"
              >
              </el-switch>
            </template>
          </el-table-column>
          <el-table-column
            label="操作"
            width="180"
          >
            <template slot-scope="scope">
              <!-- 修改按钮 -->
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
              <!-- 删除按钮 -->
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
              <!-- 分配角色按钮 -->
              <el-tooltip
                effect="dark"
                content="分配角色"
                placement="top"
                :enterable="false"
              >
                <el-button
                  type="warning"
                  icon="el-icon-setting"
                  size="mini"
                  @click="setRoles(scope.row)"
                ></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
      </div>

      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[2, 4, 6, 8]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 用户添加对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="60%"
      @close="addDialogClosed"
    >
      <span>在下面表格中填写添加信息</span>
      <!-- 表单填写 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="100px"
      >
        <el-form-item
          label="用户名"
          prop="username"
        >
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="phone"
        >
          <el-input v-model="addForm.phone"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="addUser"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 用户信息编辑对话框 -->
    <el-dialog
      title="提示"
      :visible.sync="editDialogVisible"
      width="60%"
      @close="editDialogClose"
    >
      <span>用户信息修改</span>
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input
            v-model="editForm.username"
            disabled
          ></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="mobile"
        >
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="editDIalogInfo"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 用户角色分配对话框 -->
    <el-dialog
      title="角色分配"
      :visible.sync="setUserRoleVisible"
      width="60%"
    >
      <div>
        <p>角色列表：
          <template>
            <el-select
              v-model="selectValue"
              placeholder="请选择"
            >
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </template>
        </p>
        <p> 当前的用户名:{{userInfo.username}}</p>
        <p>当前的用户角色:{{userInfo.role_name}}</p>
      </div>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="setUserRoleVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="saveRoles()"
        >确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 4
      },
      userlist: [],
      rolesList: [],
      total: 0,
      addDialogVisible: false,
      // 用户角色对话框
      setUserRoleVisible: false,
      userInfo: {},
      addForm: {
        username: '',
        password: '',
        email: '',
        phone: ''
      },
      selectValue: '',
      //  用户添加信息表单验证
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }

        ],
        phone: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }

        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }

    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      //   console.log(res)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 用户状态栏改变，提交到后台
    async userStateChange (userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog (id) {
      // console.log(id)
      const { data: res } = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 编辑对话框关闭重置
    editDialogClose () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editDIalogInfo () {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) {
          // eslint-disable-next-line no-useless-return
          return
        }
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        // console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }
        // 关闭对话框
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新成功！')
      })
    },
    // 删除用户信息
    async removeUserById (id) {
      const res = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // console.log(res)
      if (res !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res1 } = await this.$http.delete('users/' + id)
      if (res1.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    // 分配角色
    async setRoles (userInfo) {
      this.selectValue = ''
      this.userInfo = userInfo
      const { data: res1 } = await this.$http.get('roles')
      if (res1.meta.status !== 200) {
        return this.$message.error('获取角色表格失败！')
      }
      this.rolesList = res1.data
      // console.log(this.rolesList)
      this.setUserRoleVisible = true
    },
    // 保存分配角色
    async saveRoles () {
      if (!this.selectValue) {
        this.$message.error('请选择要保存的值')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectValue })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setUserRoleVisible = false
    }
  }

}
</script>

<style lang="less" scoped>
</style>
